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    • 10. 发明申请
    • Cardiac valve procedure methods and devices
    • 心脏瓣膜手术方法和装置
    • US20050010285A1
    • 2005-01-13
    • US10787057
    • 2004-02-25
    • Gregory LambrechtJohn LiddicoatRobert Moore
    • Gregory LambrechtJohn LiddicoatRobert Moore
    • A61F2/06A61F2/24A61M5/00
    • A61F2/2418A61F2/2412A61F2/2427A61F2220/0016A61F2250/0059
    • The present invention discloses devices and methods for performing intravascular procedures with out: cardiac bypass. The devices include various embodiments of temporary filter devices, temporary valves, and prosthetic valves. The temporary filter devices have one or more cannulae which provide access for surgical tools for effecting repair of the cardiac valves. A cannula may have filters of various configurations encircling the distal region of the cannula, which prevent embolitic material from entering the coronary arteries and aorta. The temporary valve devices may also have one or more cannulae which guide the insertion of the valve into the aorta. The valve devices expand in the aorta to occupy the entire flow path of the vessel. In one embodiment, the temporary valve is a disc of flexible, porous, material that acts to filter blood passing therethrough. A set of valve leaflets extend peripherally from the disc. These leaflets can alternately collapse to prevent blood flow through the valve and extend to permit flow. The prosthetic valves include valve fixation devices which secure the prosthetic valve to the wall of the vessel. In one embodiment, the prosthetic valves have at least one substantially rigid strut, at least two expandable fixation rings located about the circumference of the base of the apex of the valve, and one or more commissures and leaflets. The prosthetic valves are introduced into the vascular system a compressed state, advanced to the site of implantation, expanded and secured to the vessel wall.
    • 本发明公开了用于进行血管内手术的装置和方法:心脏旁路。 这些装置包括临时过滤装置,临时阀和假肢阀的各种实施例。 临时过滤器装置具有一个或多个套管,其提供用于外科手术工具的进入以实现心脏瓣膜的修复。 套管可以具有围绕套管的远侧区域的各种构造的过滤器,其防止栓塞材料进入冠状动脉和主动脉。 临时阀装置还可以具有一个或多个引导阀插入主动脉的套管。 瓣膜装置在主动脉中扩张以占据血管的整个流动路径。 在一个实施例中,临时阀是柔性多孔材料的盘,其用于过滤血液中的血液。 一组瓣叶从圆盘外围延伸。